Data Scientist

About the job

About The Role We are seeking a highly motivated and technically skilled Data Scientist to join our AI/ML Innovation team. This role focuses on developing cutting-edge solutions using Graph-based Retrieval-Augmented Generation (RAG) and fine-tuning Large Language Models (LLMs) to solve complex business problems and enhance decision-making capabilities. Key Responsibilities • Design and implement Graph RAG pipelines for enterprise-scale knowledge retrieval and contextual generation. • Fine-tune LLMs (e.g., GPT, LLaMA, Mistral) using domain-specific datasets to improve performance on targeted tasks. • Develop and maintain knowledge graphs and embeddings for semantic search and reasoning. • Collaborate with engineering teams to deploy scalable AI solutions in production environments. • Conduct experiments and evaluations to benchmark model performance and ensure robustness. Required Qualifications • Bachelor’s or Master’s degree in Computer Science, Data Science, Machine Learning, or related field. • 3+ years of experience in applied machine learning or NLP. • Hands-on experience with LLM fine-tuning using frameworks like Hugging Face Transformers, DeepSpeed, or LoRA. • Strong understanding of graph databases (e.g., Neo4j, RDF, DGL) and knowledge graph construction. • Proficiency in Python and ML libraries (PyTorch, TensorFlow, Scikit-learn). • Familiarity with cloud platforms (AWS, Azure, GCP) and MLOps practices. About State Street We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work-life support, and vibrant employee networks that keep you connected.

Requirements

• Graph-based Retrieval-Augmented Generation
• Large Language Models
• NLP
• Python
• ML Libraries

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Data Science, Machine Learning
• 3+ years of experience in applied machine learning or NLP

Preferred Technologies

• Graph-based Retrieval-Augmented Generation
• Large Language Models
• NLP
• Python
• ML Libraries

Benefits

• Generous medical care
• Insurance
• Savings plans
• Flexible Work Programs

About the company

State Street is one of the largest custodian banks, asset managers and asset intelligence companies in the world. We provide investment servicing, data & analytics, investment research & trading and investment management to institutional clients. We strive to create a great work environment with competitive benefits and opportunities for development. We are committed to fostering an inclusive environment where every employee feels valued.